beautiful red-billed teal in flight

africa african anas anatidae anatinae animal animalia anseriformes aves barren beak beautiful bipedal bird chordata county creature dabbling duck egglaying endothermic erythrorhyncha feather feathered fourchambered fresh grassland heart heterotrophs high kenya lake lightweight metabolic naivasha nakuru rate redbilled savanna skeleton strong teal warmblooded water wild wing winged